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Finding the Fourth Proportional to 620,195.19, 929,702.28 and 199,175.82

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Solution

The fourth proportional to 620,195.19, 929,702.28 and 199,175.82 is: 298,574.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,195.19 : 929,702.28 = 199,175.82 : x
  2. Step 2: Convert to fraction form
    620,195.19/929,702.28 = 199,175.82/x
  3. Step 3: Cross multiply
    620,195.19x = 929,702.28 × 199,175.82
  4. Step 4: Simplify right side
    620,195.19x = 185,174,209,326.36
  5. Step 5: Solve for x
    x = 185,174,209,326.36/620,195.19
  6. Step 6: Final answer
    x = 298,574.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.